- Move InnerPointerToCodeCache to using internal callbacks.
- Refactor internal and external callbacks to use a unified interface.

Bug: v8:13184
Change-Id: If0006d324b0433f5d6bbf00b6d0fc1a2589227bc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3834583Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82515}